<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图区域 -->
    <el-card>
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getGoodsList">
            <el-button slot="append" @click="getGoodsList" icon="el-icon-search"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="goAddPage">添加</el-button>
        </el-col>
      </el-row>

      <!-- table表格区域 -->
      <el-table :data="goodsList" border stripe>
        <el-table-column type="index"></el-table-column>
        <el-table-column label="商品名称" prop="goods_name"></el-table-column>
        <el-table-column width="95px" label="商品价格(元)" prop="goods_price"></el-table-column>
        <el-table-column width="70px" label="商品重量" prop="goods_weight"></el-table-column>
        <el-table-column label="创建时间" width="160px">
          <template slot-scope="scope">{{scope.row.add_time | dateFormat}}</template>
        </el-table-column>
        <el-table-column label="操作" width="130px">
          <template slot-scope="scope">
            <el-button type="primary" icon="el-icon-edit" size="mini"></el-button>
            <el-button
              type="danger"
              @click="removeGoodsById(scope.row.goods_id)"
              icon="el-icon-delete"
              size="mini"
            ></el-button>
          </template>
        </el-table-column>
      </el-table>

      <!-- 分页区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[5, 10, 15, 20]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
        background
      ></el-pagination>
    </el-card>
  </div>
</template>

<script>
export default {
  data() {
    return {
      queryInfo: {
        query: "",
        pagenum: 1,
        pagesize: 10
      },
      // 商品数据列表
      goodsList: [],
      // 数据总条数
      total: 0
    };
  },
  created() {
    this.getGoodsList();
  },
  methods: {
    // 按分页查询所有商品列表
    getGoodsList() {
      this.$http.get("goods", { params: this.queryInfo }).then(res => {
        var res = res.data;
        if (res.meta.status !== 200) {
          return this.$message.error("获取商品数据列表失败");
        }

        this.$message.success("获取商品数据列表成功");

        this.goodsList = res.data.goods;
        this.total = res.data.total;
      });
    },
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize;
      this.getGoodsList();
    },
    handleCurrentChange(newPage) {
      this.queryInfo.pagenum = newPage;
      this.getGoodsList();
    },
    // 点击删除按钮触发
    removeGoodsById(goods_id) {
      this.$confirm("此操作将永久删除此商品信息, 是否继续?", "提示", {
        confirmButtonText: "确定",
        cancelButtonText: "取消",
        type: "warning"
      })
        .then(res => {
          this.$http.delete("goods/" + goods_id).then(res => {
            var res = res.data;
            if (res.meta.status !== 200) {
              return this.$message.error("删除失败");
            }
            this.$message.success("删除成功");
            this.getGoodsList();
          });
        })
        .catch(err => {
          this.$message.error("取消删除");
        });
    },
    goAddPage(){
        this.$router.push('/goods/add')
    }
  }
};
</script>

<style lang="scss" scoped>
</style>